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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2000
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In quantitative analysis of second group in lab. H2S gas is passed in acidic medium for ppt. When Cu+2 and Cd+2 react with KCN, than in which of the following condition, ppt will not be formed due to relative stability :


( A ) K3[Cu(CN)4] – More stable K2[Cd(CN)4] – Less stable
( B ) K3[Cu(CN)4] – Less stable K3[Cd(CN)4] – More stable
( C ) K2[Cu(CN)4] – Less stable K2[Cd(CN)4] – More stable
( D ) K2[Cu(CN)4] – More stable
K2[Cd(CN)4] – Less stable
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